What are some best practices for incorporating PHP scripts into HTML pages for displaying dynamic content like IP addresses?

To display dynamic content like IP addresses on an HTML page, you can use PHP scripts to retrieve the user's IP address and then incorporate it into the HTML code. One common method is to use the $_SERVER['REMOTE_ADDR'] variable in PHP to fetch the user's IP address and then echo it within the HTML code.

<?php
$ip_address = $_SERVER['REMOTE_ADDR'];
?>

<!DOCTYPE html>
<html>
<head>
    <title>Display IP Address</title>
</head>
<body>
    <h1>Your IP Address is: <?php echo $ip_address; ?></h1>
</body>
</html>